John Carpenter is by no means unknown to the world of movies that make you think and leave you feeling freaked out. He has such classics as The Thing and Prince of Darkness. However, his most interesting and shudder-inducing film, in my humble opinion, is In the Mouth of Madness.
This film borrows thematically from the master of weird fiction, H.P. Lovecraft. Where most films go wrong with Lovecraft is trying to adapt a direct story. Most of these, with a few exceptions, are poor at best. However, John Carpenter took the source material and found the consistent themes running within. We have an average man, who finds himself facing something beyond his scope of understanding. The terror of this film is not in a monster, but a world turned on its head.
This film stars Sam Neil, Jurgen Prochow, with Charlton Heston in a supporting role. Click on the image below to pick up a copy, and the official synopsis is below.


Synopsis: Imagine a novel so overwhelmingly hypnotic, so tremendously horrifying that it paralyzes its audience with fear and turns even its most sensible readers insane. When the author disappears, an insurance investigator hired to find the writer discovers far more than he could ever imagine in this spellbinding thriller. Starring Emmy and Golden Globe-nominee Sam Neill (“Jurassic Park,” TV’s “Merlin”), Jürgen Prochnow (“The Da Vinci Code,” “The English Patient”), Julie Carmen (“Gloria,” “The Milagro Beanfield War”), Emmy-winner David Warner (“Titanic,” TV’s “Masada”) and Academy Award and Golden Globe-winner Charlton Heston (“Ben Hur,” “The Ten Commandments”). Directed by John Carpenter (“Escape from New York,” “They Live”).